Derson



(No Model.)

J.- MACK. ANDERSON. PERPETUAL. COMBINATION DATE CALENDAR,

No. 357,262. Patented Feb. 8, 1887.

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JOHN MACKENZIE ANDERSON, OF TORONTO, ONTARIO, CANADA.

N'PERPETUALCOMBINATION DATE-CALENDAR.

SPECIFICATION forming part of Letters Patent No. 357,262, dated February 8, 1887. Application filed May 11, 1886. Serial No. 201,886. (No model.) Patented in Canada May'5. 1886, No. 23,978.

To all whoi n, it may concern:

Be it known that 1, JOHN MACKENZIE AN- DERSON, a subject of the Queen of Great Britain, residing at Toronto, in the county of York and Province of Ontario, have invented a new and useful Combination Date-Calendar, (for which I have obtained a patent in the Dominion of Oanada, No. 23,978, bearing date May 5, 1886,) of which the following is a specifica-' tlon.

My invention relates to the use and application of sliding or revolving bands upon a central cylindrical body in such a manner as to produce, by adjustment once a month, an improved datecalendar. I

Figurel represents the several parts of my invention and their application to an inkstand. Fig. 2 represents the several parts of my invention and their application to a paperweight.

In Fig. 1 of the drawings, A A isa central cylindrical body, of metal or other material, bearing on its lateral surface and arranged, as shown, the number of the days of the longest month, 1 to 31, inclusive.

B is a band, of metal or other material,

A marked, as shown, with the names or contracband is intended to show, by adjustment once a month, the day of the week upon which any particular month begins.

O is a band, of metal or other material,with a cut-out section, F F, and is designed to encircle A A, and, in thesamemanner as the band The design B, revolve in a groove, as shown.

Thisof this band is to conceal or disclose either or all of the numbers 29, 30, and 31, according to the position the cut-out section F F is made to assume in moving the said band C.

D is a band, of metal or other material, bearing upon its surface the names or contractions of the names of the twelve months of the year in consecutive order, and is designedto encircle A A, fitting :into and revolving in a groove, as shown.

E is a plate, of metal or other material, having in it an orifice, G, as shown. This plate is designed. to be fixed upon A A in front of the band D, but separate from it, its object be; ing to give special prominence to the name of the month or contraction of the same visible for the time being through said orifice G by concealing one or more of the names of the month or contractions of the same on either side of said orifice.

In Fig. 2 the various parts are designed to exhibit modifications of those in Fig. 1, the central body, A A, in Fig. 1 corresponding to the central body, A A, in. Fig. 2, the band B in Fig. 1 to the band Bin Fig. 2, the band C in Fig. 1 to the band C in Fig. 2, the band D in Fig. l to the band D in Fig. 2, the plate E in Fig. 1 to the plate E in Fig. 2, and the cut out section F F in Fig. l to the out-out section F F in Fig. 2.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination, in a date-calendar, of the cylinder A A, provided with the numbers of Q the days of the month X, weekly'names Y, the" regulating-index O, the monthly-index D, and the perforated plate E, as shown and described, 

